An Improved Single-Slice Rebinning Algorithm for Helical Cone-Beam CT
CHEN Lian
WU Zhi-fang
ZHOU Li-ye
Abstract：Large pitch was used to speed up scanning in helical cone-beam CT,but its reconstruction remains a challenging problem.The Single-Slice ReBinning method(SSSSSRB),proposed by Noo et al,can obtain high image quality at large pitch,but artifacts appear when pitch is too large for given detector. Inthis paper, a new approximate reconstruction scheme, i.e. Improved Signle-Slice ReBinning method(ISSRB)is described.It modified the key rebinning step of SSRB.Theoretical consideration and reconstruction of simulation data are presented in comparison to SSRB in the paper.Results show that the pitch of proposed method is(1+tan2o)times larger than that of SSRB for given detector size,and the reconstruction image quality is comparable or even better.
Keywords：computed tomographyhelical cone-beamsingle-slice rebinningimage reconstruction
Publication Date：2008-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 7-13 )